With Rahm Emanuel back in the race for Chicago mayor thanks to a ruling from Illinois' highest court, the question now is what effect the legal dispute had on the race.

A lower court threw the former White House chief of staff off the ballot earlier in the week because he had not lived in Chicago for a full year before the Feb. 22 election. The Illinois Supreme Court on Thursday ruled unanimously in Emanuel's favor.

It's unclear if the other contenders were able to attract some notice from voters who thought Emanuel might not make the ballot. And it's possible Emanuel garnered sympathy from voters.

Don Rose, a longtime analyst of Chicago politics, said the legal saga would bring Emanuel "even greater sympathy" and could lift him to victory.